| Literature DB >> 18022654 |
Gabin Nselapi Louh1, Alain Meli Lannang, Celine Djama Mbazoa, Jean Gustave Tangmouo, Justin Komguem, Paula Castilho, Fernande Ngounou Ngninzeko, Naz Qamar, David Lontsi, Muhammad Iqbal Choudhary, Beiban Luc Sondengam.
Abstract
Three xanthones, polyanxanthone A (1), B (2) and C (3) have been isolated from the methanol extract of the wood trunk of Garcinia polyantha, along with five known xanthones: 1,3,5-trihydroxyxanthone (4); 1,5-dihydroxyxanthone (5); 1,3,6,7-tetrahydroxyxanthone (6); 1,6-dihydroxy-5-methoxyxanthone (7) and 1,3,5,6-tetrahydroxyxanthone (8). Their structures were determined by means of 1D- and 2D-NMR techniques. Some of the above compounds were screened for their anticholinesterase activity on acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes.Entities:
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Year: 2007 PMID： 18022654 DOI： 10.1016/j.phytochem.2007.10.002
Source DB: PubMed Journal: Phytochemistry ISSN： 0031-9422 Impact factor: 4.072